Neptunium and plutonium sorption to Snake River Plain, Idaho soil
-
Bruce J. Mincher
Summary
The behavior of Np and Pu on soil collected from the subsurface disposal area at the Idaho National Engineering and Environmental Laboratory was investigated by performing short-duration, sorption experiments to measure sorption isotherms. Neptunium sorption can be described with a Freundlich isotherm; however, Pu sorption can only be described in this fashion as a conservative estimate of minimum sorption. Geochemical modeling predictions suggest that initial sorption of Np is controlled predominantly by surface complexation on clay minerals, while Pu is controlled by a competition between complexation with iron oxyhydroxides and the precipitation of hydrolysis products. Longer-term sorption is governed by the transformation of these species to oxide minerals. Solution ionic strength and carbonate alkalinity did not significantly affect Np or Pu soil sorption.
© 2003 Oldenbourg Wissenschaftsverlag GmbH
Articles in the same Issue
- Determination of binary data for neptunium(V) nitrate
- Pu-Th separation studies employing di(2-ethylhexyl)isobutyramide (D2EHIBA) as extractant from nitric acid medium
- New laser induced photoacoustic signal measurement method. Example of application: Identification of the uranium(IV)-dioxalato complex in solution
- Complex formation between uranium(VI) and α-D-glucose 1-phosphate
- Neptunium and plutonium sorption to Snake River Plain, Idaho soil
- Disequilibria in the disintegration series of U and Th and chemical parameters in thermal spring waters from the Tatun volcanic area (Taiwan)
- Comparative study on the evaluation of gamma-dose rate above uranium mineralisation areas in Western Sudan
- Efficacy of a new tan doped sol-gel sorbent for uptake of zinc
- Electrochemical dissolution of simulated "white inclusions" in nitric acid. Linear voltammetry study with Mo, Re, Ru metals and their alloys electrodes
- Direct labeling studies of octapeptides with rhenium-188
Articles in the same Issue
- Determination of binary data for neptunium(V) nitrate
- Pu-Th separation studies employing di(2-ethylhexyl)isobutyramide (D2EHIBA) as extractant from nitric acid medium
- New laser induced photoacoustic signal measurement method. Example of application: Identification of the uranium(IV)-dioxalato complex in solution
- Complex formation between uranium(VI) and α-D-glucose 1-phosphate
- Neptunium and plutonium sorption to Snake River Plain, Idaho soil
- Disequilibria in the disintegration series of U and Th and chemical parameters in thermal spring waters from the Tatun volcanic area (Taiwan)
- Comparative study on the evaluation of gamma-dose rate above uranium mineralisation areas in Western Sudan
- Efficacy of a new tan doped sol-gel sorbent for uptake of zinc
- Electrochemical dissolution of simulated "white inclusions" in nitric acid. Linear voltammetry study with Mo, Re, Ru metals and their alloys electrodes
- Direct labeling studies of octapeptides with rhenium-188
